If you cannot access open-sharing.com with your computer you may use a proxy to bypass filters.

Unblock OpenSharing with proxy mirrors 2019

It is really sad because if your country or ISP has blocked OpenSharing website in your internet then you can't access it directly. However, there are some alternative ways to access open-sharing.com even if it's blocked in your country. These proxies are hosted in countries where OpenSharing is not blocked.
These OpenSharing proxies can still deliver the content of OpenSharing to you!

If you cannot unblock access to OpenSharing, we recommend you to try ExpressVPN that can give you a complete anonymity protection: you can anonymize every application that is connected to the Internet, including Mozilla Firefox, Google Chrome, Internet Explorer and Opera web browsers. You can also select IP addresses located in different countries.